骨砍创金属颗粒的检测

目的 应用扫描电镜/X射线能谱仪(SEM/EDX)对菜刀砍击骨质后遗留在创面上的金属微粒进行检测.方法 3种不同材质菜刀各取5把,对猪大腿骨进行砍击,使用SEM/EDX对骨创面上附着的金属颗粒元素以及菜刀自身所含元素进行定性及定量检验,并对结果进行比对分析.结果 菜刀样本同型号之间元素重量百分比相比较,结果无统计学差异(P＞0.05);创面附着金属颗粒与菜刀自身所含元素种类特征相同;其所占重量的百分比一致(P＞0.05);结论 骨骼创面遗留金属颗粒的元素种类及其百分比含量,可以作为区分菜刀类致伤工具的重要依据.     

转型时期维护监狱民警心理健康的思考

随着监狱系统行刑理念的不断进步 ,监狱人民警察的心理健康状况逐渐引起了监狱机关及其社会的关注。通过对监狱民警心理状况进行调查 ,转型时期监狱民警普遍存在的心理问题 ,不仅直接影响了他们工作潜能的发挥 ,而且也直接影响到了监狱改造工作的质量和效果。探索和研究减轻监狱民警心理压力的对策 ,促使他们保持心理健康 ,已成为促进监狱民警素质建设、提高执法水平和教育改造质量的关键所在。     

复方守宫散中铅、镉、铜含量分析

目的：测定抗肿瘤药物复方守宫散中微量金属元素铅（Pb）、镉（Cd）、铜（Cu）的含量.方法：采用湿法消化,火焰原子吸收分光光度法测定.结果：复方守宫散中含金属元素Pb、Cd、Cu,含量高低依次为：Pb〉Cu〉Cd.结论：复方守宫散每日服用量中Pb、Cd、Cu含量均远低于人体正常摄入量,属安全用药范围.     

合肥市大蜀山几种药用植物体内铅的含量分析

目的:以安徽省合肥市郊大蜀山几种常见的药用植物为例,分析铅(Pb)在药用植物不同部位的分布,初步探索Pb在药用植物体内分布的规律。方法:采用湿法消化、原子吸收分光光度法测定Pb元素的含量。结果:植物体内Pb的含量与植物种类和生长环境有关。本实验为从源头控制中药材和中成药重金属超标提供科学依据。     

开拓汗潜手印显现的新领域

系统论述了JHF-系列荧光粉末和JHC-系列荧光磁性粉显现汗液指纹的理论基础和主要特点,比较了与金属粉末显现手印的不同效果,列举了在不同客体和不同留痕条件下显现的汗潜手印的方法.     

参芪降糖颗粒配合诺和灵50R治疗2型糖尿病临床观察

目的:观察参芪降糖颗粒配合诺和灵50R治疗2型糖尿病的疗效。方法:60例2型糖尿病患者,随机分为两组,治疗组30例,用参芪降糖颗粒配合诺和灵50R治疗;对照组30例,单用诺和灵50R治疗。12周后观察疗效,监测空腹血糖、餐后2 h血糖、中餐前血糖、晚餐前血糖、糖化血红蛋白(HbA1C)。结果:治疗后两组患者血糖均得到良好控制,两组血糖值和HbA1C比较均无显著差异(P>0.05),治疗组诺和灵50R治疗有效剂量较对照组节约20%(P<0.01),治疗组出现1例低血糖反应,对照组出现8例低血糖反应,与治疗组有显著差异(P<0.05)。结论:参芪降糖颗粒配合诺和灵50R降低血糖作用明显,可减少诺和灵50R用量,且安全性好。     

Doped hydrophobic silica nano- and micro-particles as novel agents for developing latent fingerprints

Novel hydrophobic silica based particles have been developed to visualise latent fingerprints. The composition of the particles has been designed to maximise both hydrophobic and ionic interactions between a variety of coloured and fluorescent reporter molecules and the silicate backbone within the particles. The resulting doped particles retain the incorporated dyes with high affinity. In addition, a variety of sub-particles have also been embedded to again produce coloured or magnetisable hydrophobic particles. The particles can be harvested as nanoparticles or microparticles. The former are applied to latent fingerprints as an aqueous suspension and the latter as a dusting agent using brushes or a magnetic wand. Examples of the prints produced using these agents are given. The resulting prints have good definition.     

Physical Matching of Metals: Grain Orientation Association at Fracture Edge

The objective of this study was to examine whether surface crystal orientation can be used to associate or differentiate metal fracture fragments. The orientations of individual crystals and crystals across the fracture plane were measured on polished steel and iron alloy surfaces using Electron Backscattered Diffraction/ Orientation Imaging Microscopy (EBSD/OIM). This investigation examined crystallographic characteristics within a metal. This study showed that for transgranular fracture, it is feasible that pieces of grains could be associated across the fracture surface with the difference in orientation between grains (misorientation) along a length sequence of grain orientations on one side of the fracture surface to associate the other side of a fracture surface. Regarding pair comparisons of crystals on fracture surfaces, it was estimated that the probability for an ordered sequence of six distinct oriented grains along a fracture surface to occur again is about 1 in 4.82 (10)³⁰ or 2.07 (10)⁻³¹.     

对新《刑法》第18条的理解与运用

本文就我国新刑法第18条中精神病的涵义,精神病患者刑事责任能力评定,精神病的医学鉴定以及对精神病人的监护治疗问题谈个人看法。供执法者和鉴定工作者在处理有关精神疾病案件时参考。     

A study of dispersion of gunshot residue from a frequently used Serbian ammunition cal. 7.65 mm to support selected aspects of casework in North Macedonia

The subject of this research was the inorganic gunshot residue component collected from shooting patterns obtained on woven cotton cloth using a Pietro Beretta model 70 pistol, cal. 7.65 mm and Serbian ammunition for the following muzzle-to-target distances: 25, 50, 75, 100 and 125 cm. For each distance, three rounds of shooting were performed. Particles were lifted within a 10 cm radius of the projectile entrance and automatically analyzed using a scanning electron microscope coupled with an energy dispersion X-ray spectrometry. The obtained data on the populations of particles were analyzed taking into account their numbers, chemical classes and sizes. The results showed an apparent maximum incidence within all particles containing barium at about 50 cm distance. Also, lead particles revealed a distinct behaviour, being dominant at a 25 cm distance, falling below the other chemical classes, and finally becoming dominant again at 125 cm. The analysis of the frequency of occurrence of particles sorted according to their sizes confirmed that the small particle population is the largest, and their distribution in function of the equivalent circle diameter is exponential-like. The obtained results provided knowledge on the distribution of particles in the vicinity of the tested firearm and ammunition cal. 7.65 mm which generally corroborates with similarly studied GSR distributions obtained for the use of pistols cal. 9 mm. This information, together with the examinations of gunshot damages and other types of residues such as soot or unburned propellant grains may support qualitative inferences on shooting distance estimation, especially in cases, when the firearm and cartridges are not available to perform test shooting. In such cases even roughly estimated shooting distance can be helpful, e.g. for confirming or excluding the possibility of self-inflicted injuries or suicide and infer on the mutual position of the shooting stage actors. An example of casework that illustrates intermediate shooting distance estimation is presented.